Math, asked by Puneeth003, 1 year ago

25. A mother is 3 times as old as her son. After 15 years she will be twice as old as her son. what is
the present age of mother?

Answers

Answered by riteish9797

Answer:

your answer will be 45 okkk

Puneeth003: explain

riteish9797: ok wait

riteish9797: there is a ratio between Mother and son is 3:1 and after 15 years it will be 2:1 then do 3-1 and multiply the ratio 2:1

riteish9797: now do 2-1 and multiply the 3:1

Puneeth003: step by step instructions

riteish9797: after doing it you will find a new ratio 3:1 and 4:2

riteish9797: now you have present ratio is 3:1 now multiply 15

riteish9797: 15×3= 45

riteish9797: in this comment section I can do only this

riteish9797: there is a small tricks

Answered by KDPatak

Answer:

Given:

To find:

Solving Question:

We are given the conditions of the age .Let 'x' be the age of son.

Therefore,

A mother is 3 times as old as her son

⇒ age of mother = 3x

After 15 years

Age of son = x + 15

Age of mother = 3x + 15

she will be twice as old as her son

⇒ 2(x + 15) = 3x +15

Solution:

2(x + 15) = 3x +15

or, 2x + 30 = 3x +15

or, 2x - 3x = 15 - 30

or, -x = -15

or, x = 15

Therefore, the age of son is 15 years.

The age of Mother = 3*15 =45

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